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Construct a 90% confidence interval to estimate the population mean when x = 122 and s = 34 for the sample sizes below. a) n = 20 b) n = 70 c) n = 90 Click here to view page 1 of the critical t-score table. Click here to view page 2 of the critical t-score table

Construct a 90% confidence interval to estimate the population mean when x = 122 and s = 34 for the sample sizes below. a) n = 20 b) n = 70 c) n = 90 Click here to view page 1 of the critical t-score table. Click here to view page 2 of the critical t-score table

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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**Constructing a 90% Confidence Interval for the Population Mean** You are asked to construct a 90% confidence interval to estimate the population mean, given that the sample mean (\(\bar{x}\)) is 122 and the sample standard deviation (s) is 34. You will perform this calculation for the following sample sizes: a) \( n = 20 \) b) \( n = 70 \) c) \( n = 90 \) **Additional Resources:** - [Critical t-score table: Page 1](#) - [Critical t-score table: Page 2](#) These links provide access to critical t-score values needed for constructing the confidence intervals.
Transcribed Image Text:**Constructing a 90% Confidence Interval for the Population Mean** You are asked to construct a 90% confidence interval to estimate the population mean, given that the sample mean (\(\bar{x}\)) is 122 and the sample standard deviation (s) is 34. You will perform this calculation for the following sample sizes: a) \( n = 20 \) b) \( n = 70 \) c) \( n = 90 \) **Additional Resources:** - [Critical t-score table: Page 1](#) - [Critical t-score table: Page 2](#) These links provide access to critical t-score values needed for constructing the confidence intervals.
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df = n-1 = 20-1 = 19

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